Kinematics Question 21
Question: What is the angle between $ \overrightarrow{P} $ and the resultant of $ (\overrightarrow{P}+\overrightarrow{Q}) $ and $ (\overrightarrow{P}-\overrightarrow{Q}) $
Options:
A) Zero
B) $ {{\tan }^{-1}}(P/Q) $
C) $ {{\tan }^{-1}}(Q/P) $
D) $ {{\tan }^{-1}}(P-Q)/(P+Q) $
Show Answer
Answer:
Correct Answer: A
Solution:
Resultant $ \vec{R}=\vec{P}+\vec{Q}+\vec{P}-\vec{Q}=2\vec{P} $
The angle between $ \vec{P} $ and $ 2\vec{P} $ is zero.
BETA
